Add stability to the Google OpenID test

The Google OpenID test relies on permissions to be set for the
localhost application - remove these if they exist already.
There is also a slight delay on the enabling of the "Accept" button.
Merge commit '4bcf574b8a' into fix-google-permissions

Conflicts:
	functional-test/src/main/java/org/zanata/page/account/GooglePermissionsPage.java
	functional-test/src/main/java/org/zanata/page/account/OpenIDPage.java
Merge pull request #206 from zanata/fix-google-permissions

Add stability to the Google OpenID test